I recently noticed a lot of oil being flung around the engine compartment of my '95 850 turbo and I think I found the culprit--that damned oil cap gasket. I finally had the chance to replace it this morning (the old gasket was so crapped out, it actually fell apart when I removed it) but I'm still left with a pretty unsightly engine bay. There's oil residue all over the cam cover, parts of the engine block and this thick yellow film of oil (looks like a layer of varnish) on certain plastic components like the air filter box. Anyone know what I should do and what can I use to get rid of the oil stains? I've heard engine degreaser isn't the solution because you have to use water to spray all that guck off and that might end up fouling the sparkplugs.

Any info./experiences would be much appreciated, thanks.